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Thread: Stand Alone PV System with Underground Enclosure - Code Violations

  1. #11
    Join Date
    Jul 2018
    Location
    US
    Posts
    14
    Pretty sure all PV inverters and charge controllers say they have to be atleast 3 feat above finish grade to avoid possible snow drift and flooding damage. It would be in the installation manuals. And I thought code required outside electrical boxes to be installed 40" above finish grade? Or am I thinking of the meter socket requirements?

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  2. #12
    Join Date
    May 2011
    Posts
    4,639
    Quote Originally Posted by solar.stevepvip View Post
    Pretty sure all PV inverters and charge controllers say they have to be atleast 3 feat above finish grade to avoid possible snow drift and flooding damage. It would be in the installation manuals.
    I've never noticed such an instruction. Unless it were actually part of the UL standard, I'm very doubtful they 'all' say that. And I don't think it's part of the standard, because: what about large pad mounted inverters?

    And I thought code required outside electrical boxes to be installed 40" above finish grade? Or am I thinking of the meter socket requirements?
    I think you're thinking of meter sockets and utility requirements.

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